Chapter VIII. 

 MDNSTB.QSITISS. 



The most common monstrosity is, a, fcetusj with an^ 

 abnormal number of limbs. They may be too few, or, 

 many. All four limbs may be presented, and one or 

 more rudimentary limbs attached to each. 



Fig. 35.. 

 Sysomian Monstrosity: Dicephalus bicollis (Gurlt). 



In some cases the head is only partially developed. 



The mouth or eyes may be entirely absent. Two 



heads may be present on one body, or two bodies 



only slightly connected to one another. In other 



cases, one body is present, apparently normal, with a 



small rudimentary foetus attached to it, — a parasite. 

 86 



